While Star Wars: The Clone Wars fans have lamented the end of that series, we have been promised additional episodes of the series, originally intended for Season 6. As it turns out, one of those unreleased story arcs will deal with a lingering mystery from the Star Wars saga -- one introduced in Star Wars: Episode II – Attack of the Clones -- Sifo-Dyas.

Sifo-Dyas’ name was mentioned prominently in Attack of the Clones – he was the Jedi the Kaminoans believed Obi-Wan Kenobi to be initially, and we learned he had apparently commissioned the creation of a clone army in the first place. Obi-Wan revealed Sifo-Dyas had in fact been killed years before, but that left plenty of question marks regarding who he was and what he’d been doing before he died.

In a new interview with USA Today, The Clone Wars’ supervising director, Dave Filoni, reveals that one of the remaining story arcs will begin with Plo Koon (voiced by James Arnold Taylor) finding a discarded lightsaber, abandoned on a sandstorm-laden planet. This discovery will open the door to the Jedi questioning their role in the Clone Wars.

"The Jedi have been fighting a war with an army that was commissioned by one of their own, Jedi Master Sifo-Dyas," says Filoni. "But who was Sifo-Dyas, and what happened to him? The dark lord of the Sith has woven an intricate web to ensnare the Jedi, but it is not full-proof and sometimes a small clue, and a bit of chance, can lead to the unraveling of the best-laid plans." You can see a clip from this story arc below.

Some reports had said only two Clone Wars arc would be completed, though more were underway when the series was cancelled. But USA Today says “a few” are being completed, and the Plo-Koon/Syfo-Dias arc is one we haven’t heard about before. It’s assumed one arc will likely be the one involving Anakin, Padme and the character Clovis (clips were shown a year ago for this storyline, originally intended for Season 5) and another recently released clip hints at a big Order 66 storyline, so it seems we have at least three more arcs. We still don't know when and how this new Clone Wars content will be released, though a likely place for more info on this to be revealed is Star Wars Celebration in Germany in July, where Filoni will be appearing.

Filoni is continuing on at Lucasfilm, helping develop a new Star Wars animated series. But when it comes to finishing The Clone Wars, he tells USA Today, "It's bittersweet in some ways for the members of the team but we're all pretty excited about what we have coming back. They are easily some of the best things we were able to do, and I think we're all glad we were able to finish them."

Filoni also speaks to USA Today about Ahsoka Tano, and the fact that even though the Season 5 finale showed her leaving the Jedi order, many fans still want to know more about what happened to her. "A lot of people want more closure with her, and that's always been curious to me since we aired that episode. It seems to imply that, I hate to say it, but short of her dying they don't feel like there's going to be any kind of closure for that character.”

He adds, "Just the fact that people want to know, frankly, is pretty exciting. I'm sure some people out there are like, 'Well, the kid's gone. Fine.' But there are a lot of people who I've talked to who are just like, 'What happens next? I have to know!' And I'm like, 'Well, I wanted to know a lot of things, too, growing up, and I had to wait.' It's a fun thing at this point."